Method of making pressers for fliers



Sept. 28 1926. 1,601,016 Y' ,v y

. H. G. CARLSON METHOD OF MAKING PRESSERS FOR FLTERS Filed July 25, 1924 4 sheets-sheep 2 @Wwf Sept. 28 1926. l 1,601,016

' H. G. CARLSON 'METHOD OF MAKING PRESSERS FOR FLIERS Filed July 25. 1924 4 sheets-sheet s Sept. 28 1926.A l 4 l 601 016 H; G. CARLSON l METHOD OF MAKING PRESSERS FOR FLIERS Filed July 25. 1924 4 Sheetsbeet 4 2% 75W Zwi- Camra/2.

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hilll IMAR Gf CRL'SN; GF XORCESTER, MASSACHUSETTS, ASSIGNOR- TOROCI?` 700D SPRNKIJER COMPANY'OF MASSACHUSETTS, Yi/ORCESTER, MLASSAGHUSETTS, A

oonieo'narron on rrAssAorUsE'rrrs METHOD l]? IAKNG PRESSERS FR' FLERS;

Application iled-2l'uly 25, 1924. Serial No. 728,272.

This. invention relatesto the method of forminga presser such as is ordinarily used onV fliers operating on a spinning 'iframe starting. with a rod. of metaly and forming the-.article inf a single piece by a series of metal .working op erations.

TheA principalv objects` otl the inventionr are to. provide for forming the completed ticle from; a single'piece ofk metaloriginally ofr the form oi' a round rod or bar. with a minimum number of operations and tools; to carry out the operations in such a manner thateachlonewill change the shape and size ofthe bla-nk as inuoh asfis practical andyet not-enough-torender the result of the operationdoubtful, thus.- insuring that the products Will be uniform7 and-especially to provide a methodo operation which will; per mit of quantity production at a comparatively smalleXpense. i

Reference-is to behad to the accompanying drawingain which.

Fig.' 1 is asideview of apart oa. round wire or rod constitnting they original blank 'from whichthe presser: is `tolbe formed;

Fig.- 2 is a sectional viewo'i a pairof upsettingA dies showing this blank in position 1 therein with their operation performed thereon to form anenlargement for making the lower bearing;

Sie a view of the-sainesblank showing the next operation;

Fignd is a side view;

Fig. 5 is an edge view oty the blank as it= isleft after the operationIshown in 3;

Fig. 6 isaplan of the bottomdie of aA pair in` which the next. operation is performed" showing the blankl in position Fig. 7-y is a sectionalviewof the saine along the center of theblank-showing the punch making depression inthe blank;

Fig. 8 is asimilar View showingthe-action F 1g.. 12 is a sectional view-ol2 a pair of dies for tlattenmg and squeezing out the thread eye end otY the blank on oneside ofthe enlargement and showing the blank in place.

therein Figs. 13 and 111 are respectivelyv aside and' Figs. 1T and 18 are respectively afside andV edge view oi? the blankas trimmed ini the dies shown in Fi 15 and 1G;

Fig. 19 is a planet' a bottom die of apair for performing. the next operation.;

Fig. 2O is a bottom plan view of the top die olithe same pair; l l

Figs. 21'and 22 are respectively aside and edge view of4 the .blank asj shaped by the -dies shown in'Figs. 19and 20;

Fig: 23 is aview similar to' Fig; .15 of another. trimming die operated in the same Way;

' Figs.V Qlrand 25 are respectively a sideand edge'viewof the blank'as trimmed bythe die shown inFigz 23;

Fig-..26 is a. planer" a die for use in punch-- inga holevin this endfot1 the blank.;

Fig. '27 is a view of the eye endor foot' of theblank completed as-it" comes from the die shown inFig. 2G;

Fig. 28 isla side view partly insectionloic avset of bending dies; l

Fig. 29 is an. edge view of the same end of the blank as it comes from saidbending, dies;v f

Fig. 30 is a plan similar to Fig. 6v ot a lower die to cooperate with a punch for completing the lowerl vbear-ing;

Fig; 31 is aperspective view of part o said punch;

Fig; 32 isan edge view oi the eye end of the presser: asitY comes lromthe dies' shown in Figs. SOvand 31p;

Fig. SS-is a plan of the lower one of aV pair of bending dies;

Fig. 34 isa side View ot saidv bendingV dies showng the blank in its lnitial position therein;

loo

Fig. 35 is a view similar to Fig. 32 showing the result ot' the operation ot' said bending dies;

Fig. 3G is a plan ot the lower' one of a pair ot' bending dies tor operation on the other end ot the blank;

Fig. 3T is a side view partly in section of this .set ot bending dies with the blank in its initial position therein;

Fig. 258 is a view et the end of the blank showing the result ot the operation of these bending dies;

Fig. 39 is a transverse sectional view of a pair ot dies tor flattening and squeezing out the part ot the blank shown in Fig. 38;

Fig. 40 is a view similar to Fig. 38 showing the result of this operation;

Fig. 41 is a plan of a lower trimming die for receiving the blank shown in Fig. 40;

Fig. 42 is a sectional view of a pair of bending dies adapted to operate on the blank as trimmed in Fig. 41;

Fig. 43 is a sectional view of the transverse end of the blank as bent up by the dies shown in Fig. 42; and

Fig. 44 is a perspective view of the completed article.

The product of this process is a complete presser as shown in Fig. 44. There is no intention to materially modify the article as now on the market. It comprises a rod or sha-nk A of the same size as the blank a shown in Fig. 1 from which it is made. In use this shank A is located vertically on one arm ot a tlier and is provided at the bottom with a split ring B adapted to be received on the arm of the flier, constituting a lower bearing. Ring B is cut out at Z) to permit it to be located in place easily. From this ring extends an arm K at right angles to the shank A having on it the presser foot G consisting of a flat piece of metal ot the shape shown. rl'his is provided with an eye D and a slot E through its edge to receive the thread or yarn. At the other end the rod A is flattened out to provide a thin part F which at its extreme end is tui'ned at right angles and provided with a nearly cylindrical wall Gr adapted to be received on the upper end of the arm of the flier and constituting the upper bearing. The wall G has a notch cut out at H to enable it to be received between the lugs on the flier and prevent its being displaced longitudinally.

The process commences by clamping the rod A in a pair of upsetting dies 10, as shown in Fig. 2, and upsetting a globular enlargement B thereon at a short distance from one end. The next operation is shown in Fig. 8. The globular enlargement is flattened on bot-h sides by a pair ot dies 11 having plain surfaces so as to assume the shape shown in Figs. 4 and 5 with opposite parallel flat sides.

Now the blank just described is placed in a die 12 havingl a depression 13 a little larger than the enlargement B and a die 14 similarly shaped is brought down upon to shape the enlargement B and give it a substantially cylindrical outer surface and llatten it a little more. This die 14 carries a punch 15 which is brought down more than halt way through the stock as shown in Fig. 8 to punch a depression in it and thereby force metal into the dies 12 and 14.

For the purpose ot providing two opposite depressions in this and ensuring their accurate alinement and also providing a wall be tween them adapted to be punched through later, I reverse the blank thus provided and place it back in the die 12 and then bring the die 14 and punch 15 down as shown in Fig. 9. This displaces the metal i'urther, forms a central wall and leaves a depression in the back. It desired the die shown in Fig. 9 may be of' a ditl'eient set vfrom thu shown in Fig. 8 having a little larger surface. to receive the excess metal. rl`his leaves the blank in the torni shown in l l and 11.

Next the short end of the blank is placed between a pair ot' dies 1G and 1T and pressure applied to squeeze the metal and flatten out the blank to a tapered shape on that end with the result shown in Figs. 13 and 14. This flattened end is then placed in a triniming die 18 and trimmed by forcing it down through it by means ot a punch 19 ol the desired shape as shown by the opening 20 in Fig. 15. The blank at this tinie rests, on a plate 21 held up by spi'ings 22 and guided by rods 23. 'Yhen the blank is punched out through the opening 2O it is received by an ejector 24 and forced out ot the dies. .`\t this stage this end ot the blank has the shape. shown in Figs. 17 and 18.

The blank, having been trimmed oil' in this manner7 is placed on a die 25 which has a tapering groove 2G therein and an enlarged iiattened space 2T. On the blank. locate-d in this die, is placed a top die 28 which has a tapering groove 29 like the groove 2G or complimentary to it and another space 30 having a tapered projection 31. The blank being pressed between these dies assumes the shape shown in 2l and 22. It will be seen that a tapering thread guiding groove C is termed on one side of the blank as shown in 21 and 22. New this blank is put into a trimming die 33 having an opening 34 ot the desired shape but otherwise operating like the die 18. A punch is brought down upon it and the blank trimmed to the form shown in Figs. 24 and 25 by cutting around its edges. It will be seen that the tapering groove C is not altered and that the toot C ol' the blank is given a rectangular shape with an angular notch C2 in the edge.

Now the end ot the blank is put into a Leonora;

bottom die34 anda punchf35 brought down, througha slot of the same shape to out out .a circular eye opening D in the blank as shown.

in Fig. 27and providing a: thread-slot through its side into the notch C. i

The next operation is to put the blank into.

a pairof dies 36V and 37 which cooperate with adie 33 having a vertical senncylindri-` cal groove 39 along the edge and-bringthe dies 36 and 37 down past the-die 38. The dies 36l and 37 have semi-circular endgrooves 43 so that the rod willbe bent at right angles as shown inFig. 29.. No other modification is made at this operation. The

dies 36 and37 are supported o-n springs 40 has an opening 46 all `the way through it.

Then a plunger or punch 47 fitting inthel opening 46 and having a partlyv cylindricall projecting therefrom is brought portion forced through the blank to punch down and out the wall as shown in Fig. 32. This forms an interior hole- B2 in the hub B of the blank and also cuts o-ut a segment B3 at one sideof the circle of this hub to form an open passage l). This completes the bottom bearing.

Next the blank just referred to is placed on a lower bending die as shown in Figs. 33-and 34. Tt is held above this die-on a plunger 5l supported by ay spring 52.

t' Then the upper bending ldie 53 is brought Y down.

These two .dies are shaped to bend the blank shown in Fig. 32'into` ythe form shown in Fig.' 35.V This completes the formation of this end of the blank-and it leavesit in the finished form shown at the bottom of Fig. 44.

The other end of the blank is now placed in the bending die in the position shown in Figs. 36 and 37 and the upper bending die 56 brought down upon it. These dies each have two semi-cylindrical grooves 57 complimentary to each other and at right angles to each other and separated by a short curved portion 58. They result in bending the shank A, at right angles into the position shown in Fig. 38. This bent end of the rod is then placed between two dies 60 and 6l which have flat surfaces to bend it out into the form sho-wn in Fig. 40, giving a flat wide body G at right angles to the shank A and considerably thinner. This end .of the blank is then placed in a trimming die 62, cut out to the desired shape as shown by the opening 63 and trimmed olf in the same manner as described in connection with Fig. l5 to produce the desired shape. This provides the arm Gr and the notch H. shown in the completed article in Fig. 44, but it is in a flat condition.

To bend it up into the circular shape desired; it.,.isz.` placedonel supportingr die 64 having. an opening 65 v therein and. al die: 661. having .ai nearly circular. horizontal projection to dropl .down through: the opening. and. bend thisendzof the blank into the form. shownainFig. 43.4 This constitutes the up-a per bearing: andleaves the presser as shown. in Fig. 44 wthiall its parts complete readyy to .belapplied'y to the flier.'

By constructing the articlev inthisman-V ner, entirely bydies,l it r.willbeseen thatit isfsuitable for quantity production and the. productwill be uniform and. does -Ynot need the hand finishing and other, operations here. tofore necessary. Pressers made by this, process are all uniform as they come outof the last dies Aand can, be used asthey` are. produce-d, with .the exceptionof` ordinary smoothing operations such aslcan be performed economically j in quantity.

Aspressers arefusedin vast quantities-on fact that the inventioncan be carriedy out withmodiications andthatit could @be ap-r plied to themanufacture ofarticles of this general nature but having a different shape; without departing from the scope of the -in-.. vention-as expressed inftherclaims. Therefore, l do not wishto bellimitedin these-ra .spects, but what I 'do claim `is 1.- The method of makingthe lower bearing of a presser foraflier, which comprises upsetting -rod of the -sizeof the I.shank of thef flierto Vform a substantially-` globular enlargement thereon 1 intermediate of itsends, flattening the said enlargementat two diametrically opposite points, forming through one of the flattened surfaces a depression by a punching operation, then forming a depression in the opposite flattened surface and forcing the wall of metal between the two backwardly to a point near the opposite side7 and finally punching out the web of metal between the two depressions and at the same time cutting through the 1 side wall of the enlargement to provide an open-sided circular bearing hub.

2. The method of making the lower rbearing of a presser for a flier, which comprises upsetting a rod to form an enlargement, forming a depression in one side of the enlargement by a punching operation, then forming a depression in the opposite side and forcing the wall of metal between the 'two backwardly, and finally punching out the web of metal between the two depressions and at the same time and by the same operation cutting through the side wall of the enlargement to provide an open-sided circular bearing hub.

3. The method of making a presser for a iiier, which consists in providing a rod of uniform diameter, upsetting it at a point between its ends to term a globular enlargement, flattening the opposite sides of the enlargement, punching into said opposite sides to form depressions part way through, separated by a thin wall of metal, flattening the rod on one side ot' the enlargement, trimming it to a substantiallyY rectangular shape with a notch in one edge, and punching a hole through the rectangular portion, providing a slit from the hole to the notched edge, and then punching the thin wall of metal from the center of said enlargement and at the same time cutting out a portion of the circumference of the enlargement to provide an open-sided bearing.

si.. The method ol making a presser for a flier, which consists in providing a rod, upsetting it at a point between its ends to form an enlargement, punching into the opposite sides of the enlargement to form depressions part way through, separated by a thin wall of metal, lattening the rod on one side of the enlargement, trimming it to the desired shape, then pressing it in dies to form a V- shaped slanting groove on one side, then trimming it again to provide a substantially rectangular shape with a notch in one edge, punching a hole through the rectangular portion at a point at the base of the V- shaped projection, and providing a slit from the hole to the notched edge and forming an open-sided bearing at the enlargement.

5. The method of making the eye end of a presser for a flier, which consists in providing a rod of uniform diameter, flattening the rod at one end, trimming it to the desired shape, pressing it in dies to form a V- shaped slanting groove on one side, trimming it to the desired shape, pressing it in dies to form a V-shaped slanting projection on the other side, trimming it again to provide a substantially rectangular shape with a notch in one edge, punching a hole through the rectangular portion at a point at the base of the V-shaped groove, and providing a slit from the hole to the notched edge.

rl'he method of making a presser for the purpose described, which consists in upsetting a rod-like blank and shaping it to form a circular enlargement with opposite flat sides, forming depressions in said flat sides to leave a thin wall between them, flattening the blank on one side o1" the enlargement and cutting it to the desired shape, punching through said blank to form a eircular perforation and a slot from the perforation to the edge, bending the rod at right angles` to the part `inst described, the bend appearing at a point just beyond the circular enlargement, punching' out the circular enlargement to form a hole through the thin wall therein and a slot through its side, bending the arm between the circular enlargement and the end of the rod shaped up as set foi th to give it the desired curva ture, bending the end of the rod at the other side of the enlargement at right angles, llattening the right-angle extension, trimming it and cutting itto a rectangular shape with a rectangular notch located centrallY in the outer edge, then bending the rectangular portion in the form of a partial circle open at one side to form an upper bearing l'or a complete presser in one piece.

ln testimony whereof l have hereunto a t'- lixed my signature.

lHJALMAR G. CARLSON. 

